PIG-5414 Fix the build on Linux ARM64

Upgrade Apache Avro to 1.8.2 because otherwise TestAvroStorage and TestOrcStorage*.java fail.
Update Snappy because the old version does not provide native library for aarch64 (ARM64)
Add TravisCI build config that builds and tests on AMD64 and ARM64 architectures

.travis.yml

@@ -0,0 +1,46 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+os: linux
+dist: focal
+
+arch:
+  - amd64
+  - arm64
+
+install:
+  - lscpu
+  - ARCH=`uname -p`
+  - echo $ARCH
+  - JDK_X64="https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u272-b10/OpenJDK8U-jdk_x64_linux_hotspot_8u272b10.tar.gz"
+  - JDK_ARM64="https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u272-b10/OpenJDK8U-jdk_aarch64_linux_hotspot_8u272b10.tar.gz"
+  - if test "X$ARCH" = "Xaarch64"; then JDK_URL=$JDK_ARM64; else JDK_URL=$JDK_X64; fi
+  - wget -q $JDK_URL && tar xzf OpenJDK*.tar.gz
+  - mv jdk8* jdk
+  - export JAVA_HOME=`pwd`/jdk
+  - wget -q https://mirrors.netix.net/apache/ant/binaries/apache-ant-1.10.9-bin.tar.gz && tar xzf apache-ant-*-bin.tar.gz
+  - export ANT_HOME=`pwd`/apache-ant-1.10.9
+  - wget -q https://downloads.apache.org/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz && tar xzf apache-maven*.tar.gz
+  - export M2_HOME=`pwd`/apache-maven-3.6.3
+  - export PATH="$JAVA_HOME/bin:$ANT_HOME/bin:$M2_HOME/bin:$PATH"
+  - java -version
+  - ant -version
+  - mvn -version
+
+
+script:
+  - ant clean test-unit
+

ivy.xml

@@ -181,12 +181,12 @@
     <dependency org="org.apache.avro" name="trevni-core" rev="${avro.version}"
       conf="compile->default;checkstyle->master">
       <artifact name="trevni-core" ext="jar" />
-      <artifact name="trevni-core" type="test-jar" ext="jar" m:classifier="tests"/>
+<!--      <artifact name="trevni-core" type="test-jar" ext="jar" m:classifier="tests"/>-->
     </dependency>
     <dependency org="org.apache.avro" name="trevni-avro" rev="${avro.version}"
       conf="compile->default;checkstyle->master">
       <artifact name="trevni-avro" ext="jar" />
-      <artifact name="trevni-avro" type="test-jar" ext="jar" m:classifier="tests"/>
+<!--      <artifact name="trevni-avro" type="test-jar" ext="jar" m:classifier="tests"/>-->
       <exclude org="org.apache.hadoop" module="hadoop-core"/>
     </dependency>
     <dependency org="org.apache.avro" name="avro-tools" rev="${avro.version}"

ivy/libraries.properties

@@ -18,7 +18,7 @@ accumulo15.version=1.5.0
 apacheant.version=1.7.1
 apacherat.version=0.8
 automaton.version=1.11-8
-avro.version=1.7.5
+avro.version=1.8.2
 basjes-httpdlog-pigloader.version=5.0
 commons-beanutils.version=1.7.0
 commons-cli.version=1.2
@@ -89,10 +89,10 @@ jsr311-api.version=1.1.1
 mockito.version=1.8.4
 jansi.version=1.9
 asm.version=3.3.1
-snappy-java.version=1.1.1.3
+snappy-java.version=1.1.8.4
 tez.version=0.7.0
 parquet-pig-bundle.version=1.9.0
-snappy.version=0.2
+snappy.version=0.4
 leveldbjni.version=1.8
 curator.version=2.6.0
 htrace.version=3.1.0-incubating

src/org/apache/pig/impl/util/avro/AvroRecordWriter.java

@@ -20,7 +20,6 @@
 
 import static org.apache.avro.file.DataFileConstants.DEFAULT_SYNC_INTERVAL;
 import static org.apache.avro.file.DataFileConstants.DEFLATE_CODEC;
-import static org.apache.avro.mapred.AvroOutputFormat.DEFAULT_DEFLATE_LEVEL;
 import static org.apache.avro.mapred.AvroOutputFormat.DEFLATE_LEVEL_KEY;
 import static org.apache.avro.mapred.AvroOutputFormat.SYNC_INTERVAL_KEY;
 
@@ -73,7 +72,7 @@ static void configureDataFileWriter(DataFileWriter<GenericData.Record> writer,
       JobConf job) throws UnsupportedEncodingException {
     if (FileOutputFormat.getCompressOutput(job)) {
       int level = job.getInt(DEFLATE_LEVEL_KEY,
-          DEFAULT_DEFLATE_LEVEL);
+          CodecFactory.DEFAULT_DEFLATE_LEVEL);
       String codecName = job.get(AvroJob.OUTPUT_CODEC, DEFLATE_CODEC);
       CodecFactory factory = codecName.equals(DEFLATE_CODEC)
         ? CodecFactory.deflateCodec(level)